繁體中文当前位置: 首页 > 图文教程 > 网络编程 > ASP.NET > Creating GUIDs in c#
- ASP.NET
- 获取字符串数组的最后一段字符
- asp.net遍历目录文件夹和子目录所有文件
- ASP.NET 中文显示之两种解决方法
- asp.net替换和恢复html特殊字符
- asp.net简化接收参数值的函数
- asp.net验证一个字符串是否符合指定的正则表达式
- asp.net求3位不同数字的组合数
- C#(.NET)数据访问连接、查询、插入等操作的封装类
- 在ASP.NET2.0中通过Gmail发送邮件的代码
- asp.net下配置数据源时出现： 未将对象引用设置到对象的实例。
- asp.net gridview强制换行
- asp.net gridview多页时的批量删除
- 未处理的事件"PageIndexChanging" 之解决方案
- gridview调整单元格宽度的方法
- aspx如果引用cs中的变量的方法
- asp.net导出EXCEL的功能代码
- asp.net注册Javascript的方法
- Asp.Net 文件操作基类
- Asp.Net+XML操作基类(修改,删除,新增,创建)
- asp.net 获取指定文件夹下所有子目录及文件(树形)
ASP.NET 中的 Creating GUIDs in c#
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-11-03 浏览: 253 ::
收藏到网摘: n/a
For those of you who don''t know, a GUID (pronounced goo''id - Globally unique identifier) is a 128-bit integer that can be used to uniquely identify something. You may store users or products in your database and you want somehow uniquely identify each row in the database. A common approach is to create a autoincrementing integer, another way would be to create a GUID for your products.
How to create a GUID in C#
The GUID method can be found in the System namespace. The GUID method System.Guid.NewGuid() initializes a new instance of the GUID class.
There are also a few overloads available for those of you who want the GUID formatted in a particular fashion.
The following live sample will output the GUID generated, the source code is also below.
Response.Write(@"
System.Guid.NewGuid().ToString() = " + System.Guid.NewGuid().ToString());
Response.Write(@"
System.Guid.NewGuid().ToString(""N"") = " + System.Guid.NewGuid().ToString("N"));
Response.Write(@"
System.Guid.NewGuid().ToString(""D"") = " + System.Guid.NewGuid().ToString("D"));
Response.Write(@"
System.Guid.NewGuid().ToString(""B"") = " + System.Guid.NewGuid().ToString("B"));
Response.Write(@"
System.Guid.NewGuid().ToString(""P"") = " + System.Guid.NewGuid().ToString("P"));
评论 (0) All
